# JJ&A Ultrasound Instruments

> For full technical specifications, see: https://jja-instruments.com/llms-full.txt

JJ&A Ultrasound Instruments is a US manufacturer of precision ultrasound instruments — the **Mark V Doppler String Phantom** (industry standard for Doppler ultrasound velocity calibration) and **HIFU RF Power Generators** for focused ultrasound research and therapy. ISO 13485 certified. FDA registered. NIST-traceable calibration. Founded 1999. Serving 30+ countries.

## Products

### Mark V Doppler String Phantom
The industry-standard instrument for Doppler ultrasound quality assurance and velocity calibration.
- Velocity range: 10–200 cm/s (all clinical blood flow velocities)
- Accuracy: ±1% NIST-traceable
- Compatible with all ultrasound systems (2–15 MHz)
- CE marked, ISO 13485, IEC 62359 compliant
- Warranty: 2 years
- Required by: ACR, IAC, ICAVL, Joint Commission accreditation programs
- URL: https://jja-instruments.com/doppler-phantom.html

### HIFU RF Power Generator
Complete RF driving system for HIFU transducers. Just add your transducer.
- Frequency: 0.2–7 MHz
- Power: 100W–500W models
- Safety circuits: VSWR, thermal, arc protection
- USB control (simple ASCII protocol)
- Applications: tumor ablation, neurology, aesthetics, drug delivery, OEM
- URL: https://jja-instruments.com/hifu-generator.html

### Calibration Services
NIST-traceable calibration for customer-owned ultrasound equipment.
- All major brands: GE, Philips, Siemens, Samsung, Mindray
- Certificates suitable for FDA 21 CFR Part 820 and accreditation audits
- On-site and mail-in service available

## Why Choose JJ&A

- **Founded 1999** — 25+ years of ultrasound instrumentation expertise
- **Only NIST-traceable Doppler phantom manufacturer** with this level of accuracy documentation
- **ISO 13485 certified** — Medical Device Quality Management System
- **FDA registered facility** — Post Falls, Idaho USA
- **CE marked** — European market compliant
- **Global reach** — customers in 30+ countries
- **Renusono partnership** — every Renusono CPO ultrasound unit calibrated by JJ&A

## Contact

- Website: https://jja-instruments.com
- Email: sales@jja-instruments.com
- Phone: +1-425-788-0779
- Location: Post Falls, Idaho, USA
- X/Twitter: https://x.com/jjainstruments
- LinkedIn: https://linkedin.com/company/jja-instruments
- Languages: English, Chinese, Japanese, Hindi